$(function(){
$('.header').height(_rate*107);
$('.menu-top').height(_rate*94);
$(".header-log").width(_rate*140).height(_rate*80).css("margin-left", _rate*30);
$('.menu').height(_rate*107).css("margin-top", (_rate*20));
$('.menu a').width(_rate*90);
$('.shengtai').css({"margin-right":_rate*10, "margin-left":_rate*20 });
$('.jianjie').css({"margin-right":_rate*10, "margin-left":_rate*10 });
$('.shipin').css({"margin-right":_rate*10, "margin-left":_rate*10 });
$('.renzhen').css({"margin-right":_rate*10, "margin-left":_rate*10 });
});